Cut-out.



r -PATBNTED APR, 144, 190s, JQ-BJBOOIHVfFfB. 4Bmusmz an A.1M. sM-IITH.

GUT-'O UT. l ,APPLIUATIOH Vrufen mnu-1906.

ATTORNEYS `N0.-84 ,978- PATBNTED APB. 14, 1908. I. H. BOOTH, P. E.BLAUSEY A. M. SMITH.

GUT-OUT..

Arnru'mol num 111.19. was.

n sums-SHEET 2.

0.2. fn W By Amm/VHS essere;

To aZZ`-whom yit mag/concern: A

Befrt known tliatfw JfoH'' H Boocrrr FRANKE. BLAUsEY', and ARTHUR' M.SMITH,

fand-'Sttte fof Celifornia,' have invented av nevi# 'and -exlactdescription'. rrnv'enti ni relates vto protective appaand otherlowtension pli' ones lie' . tconsis ricnseatures and conir bniat1ons hterdescribed 'and more parfy ing' forininga part oic'tliis speciie'a- Il CutiQut,' of which tbe followniente, against b ur'ningout byln'gl'ietension circuits.

tion, in wliicl'i similar characters of reference'indicate-corresponding parts in. all the views.

' Figure l is bodi'nient of'ourvinvention; Fig. 2 is aside elevationthereof; Fig. 3 is a longitudinal, verticalv secticnon the line `3-3 ofFig. 1;

Figs.` Li, eand'r are perspective `yievvs of a contactarin,ya'copera'tirig bracket and one of theground connections; Fig. 7 showsone of the inse devices in -si'de being in-y section, and flig.; 8illustrates the @n nuections.of` the a paratus diagrammatica. y. Plate...Tlienuineral 1 designatesasupporting base for our iinprov'ed apparatus,which may doctor",y which,

a iront elevation -of one em' elevation, parts l Fig. T9 'is a bac viewof the supporting A be of marbleJ slate or other suitablenon-conhasrnonnted upon it at eachv side near itscenterline terminalsllf-l 1-and` near its. upper portionV instrument terminals 12-12whichprovideineansfor ('Lonnecting,` that may bescensidered, trie-normalcircuit;

J @inedbyf'conductors 12With thelineA cir- .vvrliicli are pivoted arinsor `clonducting .nienif .bers lll-l there beinggon'e for each side ofktlie circuit. IElectrically, ,connected with the vinstrument terminalsbyconductors 14a are brackets 15e-15 extending If )utwardly from thebase, to which tliey ere' secured, and

each having' an angular end portion 16 in' 'Wliicli'is a'sl'ot 1'7.AThis` slot 1s sltu'atednearly opposite asimilar slot 18 1n theupperextremity of the associated arm 14. Tlue arms are -joined'totliebrackets 4lieldan position to complete the normal circuit by fuses19, which are shown as'surroundedby mlo'tectirigtubes 20 of glass or.other'insulat-- j =sgecatieriforLeiters Parete axillary 1S),4 1906.

citizens et 1tbe' 'll1iited States,l and'residents l i of SarPedrofinythe` county of Los Angeles .Inj each ol the'v caps isan opening 'Wlncbthe fuse passes f' j oined f to the" lclose .the local eurrentis concor.

atented April 14, 1908. 'sereine-estres] A f n'xat'erial. 'Upon theopposite ends of ,each of tbe tubes is a 'loosenietallic ca'p 21x havingprojectingfroni it an annular flange 2 L or engagement with the slottedportions of the braclret and arm-at its side of the base'.

and through Vwhich is` free tornove,",vliile the soldered to thecap at23', there being 'an in'- terni'ediate portion 24"' somewhat sepa-rated'connectionbetween the fuses, tubes and caps lleaves the' latter freetoseparate fronrthe tubes When the'if'uses are ri'lp'tured.`

distance 4of each ofthe fusey portionsl, is 7the reducedv end 25 of acarbon block 26 furnishing' a ground ground te1n1inal127 by a conductor28. At the op osite,sidesoftliev pivots from ti. e fuseconnections ywiththe brackets. are contact members .29*29',

tion with which the ,arms may fall when the 22though v whichl ispreferably from the' cap. This connection for, a disruptive' discliergeI these blocks being jolned to e lend of said fuse is of the arinsinto cooperablowing-outlet" the 4fuses release them/ Tliesecontacts areconnected tothe groundterrninal by conductors 3'0.'

lncl1ided between the arms is a sparkPgar/furnished by? `slightlyseparated 1 carbon llocks 31,31

doctors 32.

Y Atltbe rear of ,ofthearm's is ya slot 33 through the ,base Ito. per'init of the passageot, an insulating proj eetion 34, which, whendravvn" outwardly,' operates contacts 35 Lto circuitsH extending fromterminals 3d to a signaling device (not shown); l .n

'In tliefnorina'l condition 'of the apparatus vwith the arr'ns held in'lthrough said arnis and fusesto tlie. linstru nient terminals, this beingof too vsmall a yolnrne ,tobreak the fuses or produce an` are.

.85 pivots vof tbe arms by conheir raised position by the fuses, -the'current 'fror'n the line passes- At this timetlie signal circuits are`held open by 'the arm projections. It the line is struck' bylightningor sustains a cross with hightensionwireshthe current Will seekthe most readily traversed paftli to earth andwill leap from the capsadjacent .to the brackets to thel .blocks EGA-rom Whicha flow to groundoccurs 'over tlie`conductor..'28. Tir-case theexcess,

on -bntone Aside -of the line, 1t 1s.

.permitted'to 'ass vtothe opposite armfof the a paratns :byeajringacross the gap between t..

he excess How of current-2f I through the fuses will blow them, thusreleasing the caps and freeing the arms.,

These `fall by virtue of their Weight and so open the space between themand the brackets (and therefore ,the instrument circuit) that no arcingcan possibly occur..

They are received by the contact 29 from which the high-tension currentcan flow-to earth over a circuit of relatively high conductivity, andpresenting no impedance. The withdrawal of the arm projections from thelocal circuit contacts, consequent from the fall of the arms, starts thesignal or signals in operation, furnishing an indication at any desiredpoint of the condition of affairs. The high-tension current havingceased to iow, the apparatus may be restored .to its initial conditionlbythe application ot' new fuses to 'the tubes and caps and theirinsertion between the raised arms vand the brackets.

i .lt will benoted that if there is upon the line a static.cliarge'resulting in a discharge sullicient to injure the instrument butof too small volume to blow the fuses in the ordinary manner, the heatof the arc produced by.

the discharge between the caps a'nd ground connections 26 will melt theportions 2410i the fuses, causing tlie operation as has already beendescribed. v

Having thusl described our invention we claim as neuT and desire tosec-ure by Letters Patent:

1. A c'ut'out 'comprising a` base having line terminals and instrumentterminals, said line terminals being. below the instrument terminals andcomprisin lugs, drop levers i pivoted to the lugs, said evers'liavingtheir necting the 'drop vcarbon blocks having a ground connection freeends providedivith forks,l brackets to which the instrument terminalsare con-v nected, said brackets being .also provided with forks, fusesresting in the forks and conlevers with the brackets,

connected with the base adjacent to the ends of the fuses resting in theforks of tlie breek-- ets, ajci'rcuit including 'a signal having itsterminals on the base, and arms connected With the drop levers andnormally retaining said terminals out of contact with each oltlie'r. 2.A cut out comprising aV base having a 'line terminal andan instrumentterminal,

said line terminal being. below the instrument terminal and comprising alug, a drop lever -pivoted to the lug, abracketA to .which theinstrument terminal is connected, a; fuse i connecting the bracket andthe drop lever, a' carbon block.. having a ground connect-ionlconnecting with the base adjacent to 4that end ot' the fuse connectedwith the bracket, a circuit including a signal having its terminals onthe base, and an arm connected with tlie drop lever and normally'retaining said terminals outofV contact with each A' other. Y

3. A cut-out comprising a basehaving a: line' terminal and vaninstrument'terminal, said line terminal being belovv the instrumentterminal and comprising a lug, .a drop lever pivoted to the lug, afuseconnecting the instrument .terminal with the free end of the drop lever,

.a circuit including asignal having Vits terminals on the-base, and anar-nr 4 connected to the drop lever and norniallv retaining saidterminals out of contact wit i each other.

4. A cut-out comprising a base hav-ing a1- plurality of'line andinstrumentterminalsl drop'levers pivoted to the base said lineterviniiials being connected to the drop levers,

fuses connecting the instrument terminals and the drop levers, supportsaid drop levers, a circuit including a signal having its terminals onthe base, 4and arms connected ivitlrtliel drop levers and whereby tonormallyL norniall Y retaining said terminals out of cona spari'` gapbetween them.

' 5. 'A cut-out comprising porting the dro lever, and afcarbon blocklconnection connected with l having a groun the cut out adjacenttontheend ofthefuse -wliicli'rests in the fork df the-bracket. n

vIn testimony lWliereofwve have'signed o ur naines to vthisspeciiication; in the presenceo'f two subscribing Witnesses.

JOHN H BOOTH.`

'Eli-ANI( E. BLAUSICAY;

'Witiiesses't v FRANK.' R. Litri',

F. H. tPanini;

a base havinur a'v line terminal and an instrument.termina a',-

niounted on the base g vtact Yvit i each otherfsaid/drop Ilevers having

